Basic Info.
Certification
ISO9001, CNAS, Ilac
Shell Material
Stainless Steel
Application
10kv Cable Network ,Elevated Cable Hybrid Network
Transport Package
Export Package
Specification
500*895*1450mm
Product Description
Product Description
1.DescriptionVSR3-12/D630A series vacuum ring main unit is a 12kV fully enclosed and insulated switch cabinet produced by Zhuhai XJ Electric Co., Ltd. It adopts vacuum as the arc extinction medium, uses SF6 gas as the insulating medium and is applicable to neutral point earthing system via small resistance, neutral point ungrounded system and neutral point earthing system via an arc suppression coil for 10kV cable network and elevated cable hybrid network. All live parts of vacuum switches of this cabinet and the switches are enclosed in a stainless steel gas chamber. The enclosed chamber is filled with the SF6 gas. SF6 gas is a colorless and odorless inert gas without any impact on the environment. Its dielectric strength is three times that of air and it is not decomposed even at 500ºC. Before leaving the factory, the switch cabinet is filled with SF6 gas at the specified pressure. The rated gas pressure is '0'MPa. The cabinet may be configured flexibly. Multiple cabinet types and combination schemes are available. There is either manual mechanism or motor-driven mechanism. Their overall and installation dimensions are similar. The cabinet may be installed outdoor or indoor, including in basement, concrete box and stainless steel box. 2.Features- Equipment intelligence: Vacuum arc extinction and external insulation by SF6 are adopted. The enclosed metal cabinet structure is compact and has two modes: UIT and distributed smart, for flexible switching to realize local fault handling.
- Equipment integration: Switch, power PT, CT, sensor, smart terminal, automatic interface, dedicated connecting cables and other design are integrated. Joint debugging test is done once or twice in factory. Standard interfaces are reserved to realize fast and convenient plug connection on site.
- Equipment practicability: The complete equipment is applicable to the construction of new cable rooms and reformation of original equipment in old cable rooms, cable lines for various demands to realize automation.
- Maintenance-free equipment: The equipment and interface adopt a fully insulated and enclosed structure. The backup power is configured with a super capacitor to ensure the equipment is highly reliable and maintenance free in design.
3.Main Technical DataItem | Parameters |
Body of switch cabinet (VSR3-12/630A) |
Name | Loading switch | Circuit breaker |
Rated voltage | 12kV |
Rated current | 630A |
Dielectric voltage at power frequency (phase-to-phase, phase-ground/break) | 42kV/48kV |
Lightning impulse withstand voltage (phase-to-phase, phase-ground/break) | 75kV/85kV (peak) |
Rated short-time withstand current | 20kA (2s) | 20kA (4s) |
Rated short-circuit drop-out current | -- | 20kA |
Closing/opening voltage | DC24V/DC48V |
Mechanical life | 10000 times |
Current transformer | Phase CT ratio | 600/5 |
Zero-sequence CT ratio | 20/1 |
Power transformer (PT) ratio | 10/0.22 |
4.Dimension and installation
5.Production Environment
Plant Aerial View
Feeder Terminal Unit(FTU) Workshop
Pole Mounted Switch Workshop
Address:
1298 Xuji Avenue, Xuchang, Henan
Business Type:
Manufacturer/Factory
Business Range:
Apparel & Accessories, Consumer Electronics, Electrical & Electronics, Industrial Equipment & Components, Instruments & Meters
Management System Certification:
ISO 9001
Company Introduction:
XJ Group Corporation is a large national enterprise. It ranks among Top 500 of China Enterprise and China Machinery Top 100. Our company is engaged in the research and production of power system automation, relay protection and control equipment, and provides all the related products and services of secondary and primary equipment of power system.